Belt Tensioner All engines use an automatic drive belt tensioner. On the 7.5L engine, there are two belts; one uses the automatic tensioner, while the alternator belt requires periodic tensioning. On all belts using an automatic tensioner, no adjustment is necessary because the tensioner adjusts for belt wear. To adjust the tension on the 7,5L engine alternator belt, loosen the adjusting bolts and rotate the alternator until the proper tension is on the drive belt and tighten the adjusting bolts. It is recommended that the belt tension indicator mark be inspected with the engine OFF at 60,000 mile (96,000 km) intervals. If the wear indicator mark is out of specification, the drive belt is worn or an incorrect drive belt has been installed. The 4.6L, 5.4L, 6.8L, all have one belt and one belt tensioner. Look at the diagram on top of the radiator or somewhere in the engine compartment.
with a wrench
thanks
which ones? upper or lower?
I think you mean the Supercharger belt? You cannot drive anywhere without your accessory belt... You can drive as long as you want without your Supercharger belt but be prepared for a substantial loss in power.
On a 1999 Ford Expedition : 2 wheel drive with standard suspension ( 26.0 U.S. gallons ) 4x4 and 2 wheel drive with rear air suspension ( 30.0 U.S. gallons )
pay someone else to do it
rear wheel drive ( and if equipped 4x4 capable )
There is none. Each driven accessory has its own drive belt. Unless you are He-Man, you will not be able to install the belts in the wrong location. Just be sure they are on straight and not crossing over to drive the wrong accessory.Stocker @ http://www.rdtiburon.com/David @ http://votefordavid.blogspot.com
I have 2000 expedition and thought i could change then. After taking my wheel off i notice they could not be change. You need to replace the upper control arm.
You aren't supposed to replace them. You aren't supposed to replace them.
About 338 if that beast gets 13 mpg.
where is located ford expedition 1999 relays